{"id":398024,"date":"2024-10-20T04:33:28","date_gmt":"2024-10-20T04:33:28","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-12-20-2017-2\/"},"modified":"2024-10-26T08:21:44","modified_gmt":"2024-10-26T08:21:44","slug":"ieee-c57-12-20-2017-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-12-20-2017-2\/","title":{"rendered":"IEEE C57.12.20-2017"},"content":{"rendered":"

Revision Standard – Active. Certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60 Hz, liquid-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below, and low voltages 7970\/13 800Y V and below are covered in this standard.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.12.20\u2122-2017 Front cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
10<\/td>\nContents <\/td>\n<\/tr>\n
11<\/td>\n1.\u2002Overview
1.1\u2002Scope
1.2\u2002Purpose
2.\u2002Normative references <\/td>\n<\/tr>\n
12<\/td>\n3.\u2002Definitions
4.\u2002Ratings
4.1\u2002Kilovolt-ampere ratings
4.2\u2002Voltage ratings and tap ratings
4.3\u2002Minimum percent impedance voltage <\/td>\n<\/tr>\n
13<\/td>\n5.\u2002Basic lightning impulse insulation levels and dielectric test levels
5.1\u2002Basic lightning impulse insulation levels
5.2\u2002Dielectric test levels
6.\u2002Tests
6.1\u2002General
6.2\u2002Dielectric tests
7.\u2002Construction
7.1\u2002Bushings and terminals <\/td>\n<\/tr>\n
14<\/td>\n7.2\u2002Accessory equipment <\/td>\n<\/tr>\n
17<\/td>\n7.3\u2002Polarity, terminal markings, and angular displacement <\/td>\n<\/tr>\n
18<\/td>\n7.4\u2002Liquid preservation
7.5\u2002Tanks <\/td>\n<\/tr>\n
19<\/td>\n8.\u2002Storage and installation
8.1\u2002Storage <\/td>\n<\/tr>\n
20<\/td>\n8.2\u2002Installation
9.\u2002Design tests for fault current capability of overhead distribution transformer enclosures
9.1\u2002Objective
9.2\u2002General requirements
9.3\u2002Test duties <\/td>\n<\/tr>\n
21<\/td>\n9.4\u2002Test duty 1\u2014An arcing fault in an enclosure
9.5\u2002Test duty 2\u2014For enclosures with internal fusible elements <\/td>\n<\/tr>\n
22<\/td>\n9.6\u2002Test results <\/td>\n<\/tr>\n
44<\/td>\nAnnex\u00a0A (informative) Auxiliary mounting devices <\/td>\n<\/tr>\n
50<\/td>\nAnnex\u00a0B (informative) Flow chart for fault current capability tests <\/td>\n<\/tr>\n
51<\/td>\nAnnex\u00a0C (informative) Bibliography <\/td>\n<\/tr>\n
52<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 7970\/13 800Y V and Below<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2017<\/td>\n52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":398026,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-398024","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/398024","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/398026"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=398024"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=398024"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=398024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}